Q13;Q04 标准查询与下载

GB/T 11837-2009 混凝土管用混凝土抗压强度试验方法

本标准规定了混凝土管用混凝土抗压强度试验方法所涉及的试件、主要试验设备、混凝土拌合物取样、试件制作、试件养护、试验步骤、试验结果计算、试验报告等。 本标准规定的试验方法适用于预应力混凝土管、预应力钢筒混凝土管、混凝土和钢筋混凝土排水管制管用混凝土抗压强度的测定。

Test methods of the concrete compressive strength of concrete pipes for water

ASTM C39/C39M-12a 圆柱形混凝土试件抗压强度的标准试验方法

1.1 This test method covers determination of compressive strength of cylindrical concrete specimens such as molded cylinders and drilled cores. It is limited to concrete having a density in excess of 800 kg/m38201;[50 lb/ft3]. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The inch-pound units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and ......

Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens

ASTM C900-12a 硬化混凝土拔拉强度的标准试验方法

4.1 For a given concrete and a given test apparatus, pullout strengths can be related to compressive strength test results. Such strength relationships are affected by the configuration of the embedded insert, bearing ring dimensions, depth of embedment, and the type of aggregate (lightweight or normal weight). Before use, the relationships must be established for each test system and each new concrete mixture. Such relationships are more reliable if both pullout test specimens and compressive strength test specimens are of similar size, consolidated to similar density, and cured under similar conditions.Note 1???Published reports (1-17)4 by different researchers present their experiences in the use of pullout test equipment. Refer to ACI 228.1R (14) for guidance on establishing a strength relationship and interpreting test results. The Appendix provides a means for comparing pullout strengths obtained using different configurations. 4.2 Pullout tests are used to determine whether the in-place strength of concrete has reached a specified level so that, for example: (1) post-tensioning may proceed; (2) forms and shores may be removed;(3) structure may be placed into service; or(4) winter protection and curing may be terminated. In addition, post-installed pullout tests may be used to estimate the strength of concrete in existing constructions. 4.3 When planning pullout tests and analyzing test results, consideration should be given to the normally expected decrease of concrete strength with increasing height within a given concrete placement in a structural element. 4.4 The measured pullout strength is indicative of the strength of concrete within the region represented by the conic frustum defined by the insert head and bearing ring. For typical surface installations, pullout strengths are indicative of the quality of the outer zone of concrete members and can be of benefit in evaluating the cover zone of reinforced concrete members. 4.5 Cast-in-place i......

Standard Test Method for Pullout Strength of Hardened Concrete

ASTM C192/C192M-12a 实验室中混凝土试样制备和固化的标准实施规程

3.1 This practice provides standardized requirements for preparation of materials, mixing concrete, and making and curing concrete test specimens under laboratory conditions. 3.2 If specimen preparation is controlled as stipulated herein, the specimens may be used to develop information for the following purposes: 3.2.1 Mixture proportioning for project concrete, 3.2.2 Evaluation of different mixtures and materials, 3.2.3 Correlation with nondestructive tests, and 3.2.4 Providing specimens for research purposes. Note 1???The concrete test results for concrete specimens made and cured using this practice are widely used. They may be the basis for acceptance testing for project concrete, research evaluations, and other studies. Careful and knowledgeable handling of materials, mixing concrete, molding test specimens, and curing test specimens is necessary. Many laboratories performing this important work are independently inspected or accredited. Practice C1077 identifies and defines the duties, responsibilities, and minimum technical qualification requirements of laboratory personnel and the minimum requirements for equipment used in testing concrete and concrete aggregates. 1.1 This practice covers procedures for making and curing test specimens of concrete in the laboratory under accurate control of materials and test conditions using concrete that can be consolidated by rodding or vibration as described herein. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. (Warning???Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to exposed skin and tissue upon prolonged exposure.2)

Standard Practice for Making and Curing Concrete Test Specimens in the Laboratory

ASTM C143/C143M-12 水硬性水泥混凝土坍落度的标准试验方法

1.1 This test method covers determination of slump of hydraulic-cement concrete, both in the laboratory and in the field. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. (

Standard Test Method for Slump of Hydraulic-Cement Concrete

ASTM C125-11b 混凝土和混凝土集料相关的标准术语

1.1 This standard is a compilation of definitions of terms as they are used in standards under the jurisdiction of Committee C09. 1.2 Other terminology under the jurisdiction of Committee C09 is included in two specialized standards. Terms relating to constituents of concrete aggregates are defined in Descriptive Nomenclature C294. Terms relating to constituents of aggregates for radiation-shielding concrete are defined in Descriptive Nomenclature C638. 1.3 Related terminology for hydraulic cement is included in Terminology C219. Additionally, the American Concrete Institute has an electronic document, ACI Concrete Terminology, which is updated periodically. While this ACI Terminology is a useful resource, it shall not be referenced directly in ASTM standards because it is not a consensus document. The use of individual ACI or other definitions in ASTM standards shall be in accordance with Form and Style, Section E5.9, Attributions. 1.4 When a term is used in an ASTM standard for which Committee C09 is responsible, it is included herein only if used in more than one Committee C09 standard. Note 18212;The subcommittee responsible for this standard will review definitions on a five-year basis to determine if the definition is still appropriate as stated. Revisions will be made when determined necessary. The year shown in parentheses at the end of a definition indicates the year the definition or revision to the definition was approved. A letter R and a year indicate when the definition was reviewed. No date indicates the term has not yet been reviewed.

Standard Terminology Relating to Concrete and Concrete Aggregates

AS 1141:1974 集料的取样和检验

This standard comprises a series of methods for the sampling and testing of aggregates. The methods described are applicable to aggregates used in concrete and in roadmaking, or for any other puropose. The standard includes sampling methods and procedures, methods for determination of density, particle size analysis, tests for determination of misshapen particles, and tests for crushing and abrasion resistance. It also includes tests to determine the soundness of an aggregate and the proportions of deleterious materials present.

SAMPLING AND TESTING AGGREGATES